JAVA regular expression, encode &#[0-9]+ form html

private static String ReplceSpecialChars(String s) {         String orig=s;         Pattern pnum=Pattern.compile("&#([0-9]+);");         Matcher m=pnum.matcher(s);         while(m.find())         {             int t=Integer.parseInt(m.group(1));             char ch=(char)t;             orig=orig.replaceFirst(m.group(0), ""+ch);         }         return orig;     } CàT will be parsed to CàT CàáT , will be CàáT